Recent progress in methane dehydroaromatization: From laboratory curiosities to promising technology

Ma, Shuqi; Guo, Xiaoguang; Zhao, Lingxiao; Scott, Susannah L.; Bao, Xinhe

doi:10.1016/s2095-4956(13)60001-7

Cited by 217 publications

(192 citation statements)

References 202 publications

(150 reference statements)

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“…summarized by the term 'methane aromatization' (MA). Details on this reaction can be found in reviews by Ismagilov [105], Bao [106] or Spivey and Hutchings [107]. A thermodynamic analysis of methane aromatization with and without coke removing agents like H 2 O, CO and CO 2 can be found in Ref.…”

Section: Methane Aromatizationmentioning

confidence: 99%

Methane Activation by Heterogeneous Catalysis

2014

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Methane activation by heterogeneous catalysis will play a key role to secure the supply of energy, chemicals and fuels in the future. Methane is the main constituent of natural gas and biogas and it is also found in crystalline hydrates at the continental slopes of many oceans and in permafrost areas. In view of this vast reserves and resources, the use of methane as chemical feedstock has to be intensified. The present review presents recent results and developments in heterogeneous catalytic methane conversion to synthesis gas, hydrogen cyanide, ethylene, methanol, formaldehyde, methyl chloride, methyl bromide and aromatics. After presenting recent estimates of methane reserves and resources the physico-chemical challenges of methane activation are discussed. Subsequent to this recent results in methane conversion to synthesis gas by steam reforming, dry reforming, autothermal reforming and catalytic partial oxidation are presented. The high temperature methane conversion to hydrogen cyanide via the BMA-process and the Andrussow-process is considered as well. The second part of this review focuses on one-step conversion of methane into chemicals. This includes the oxidative coupling of methane to ethylene mediated by oxygen and sulfur, the direct oxidation of methane to formaldehyde and methanol, the halogenation and oxyhalogenation of methane to methyl chloride and methyl bromide and finally the non-oxidative methane aromatization to benzene and related aromates. Opportunities and limits of the various activation strategies are discussed.

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Section: Methane Aromatizationmentioning

confidence: 99%

Methane Activation by Heterogeneous Catalysis

2014

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“…Oxidative coupling, wherein higher hydrocarbons (specifically ethylene) are generated has been strongly targeted [4], as has direct partial oxidation to yield methanol or formaldehyde in a single step [5]. More recently, dehydroaromatisation has been the subject of some attention [6,7]. This reaction which can be summarised by the following stoichiometric equation:…”

Section: Dehydroaromatisation Of Methanementioning

confidence: 99%

Methane dehydroaromatisation and methanol activation over zeolite catalysts: an overview

Hargreaves

2016

Appl Petrochem Res

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A brief overview of methane dehydroaromatisation over MoO 3 /H-ZSM-5 derived catalysts, the deposition of carbonaceous residues from methanol over H-mordenite and the role of binders in zeolite catalysed reactions is presented. The selective poisoning of methane cracking catalysts is proposed as a potential strategy for the development of methane dehydroaromatisation catalysts. In the case of methanol conversion over H-mordenite, evidence is presented for the formation of larger alkylated aromatics, such as methylnaphthalenes. Binders, ubiquitous components of technical catalysts, have been documented to have a number of important effects often outweighing laboratory based modifications, and therefore, consideration of their effects should be made at an early stage of catalyst development.

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“…Various strategies, focused on optimization of the zeolite supports and addition of the promoters, have been tested to improve the catalytic activity and stability of the catalysts. It has been found that dealumination, external surface silanation, post-synthesis hydrothermal treatment, addition of second metal component, etc., are effective ways to improve the performance of the catalysts [13][14][15]. In recent studies, Zhang investigated the performance of eight kinds of transition metal-modified Mo/HZSM-5 catalysts in MDA with periodic CH 4 -H 2 switching [16].…”

Section: Introductionmentioning

confidence: 99%

Improved performance of hierarchical porous Mo/H-IM-5 catalyst in methane non-oxidative aromatization

Liu

Kan

2017

Appl Petrochem Res

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Two novel hierarchical porous IM-5-S and IM-5-M materials were synthesized using mesoporous silica SBA-15 and MCM-48 as the silica sources, and for comparison conventional IM-5-C zeolite was also synthesized with the same synthesis composition. IM-5-S and IM-5-M samples exhibited larger crystal sizes and different textural properties than the conventional IM-5-C zeolite. Moreover, Mo-modified catalysts, Mo-IM-5-S, Mo-IM-5-M, and Mo-IM-5-C, were prepared for the non-oxidative aromatization of methane. The physical properties and acidities of the samples were characterized by XRD, SEM, TEM, BET, and NH 3 -TPD. Compared with Mo-IM-5-C, the Mo-IM-5-S and Mo-IM-5-M catalysts showed higher yields of aromatics and better stabilities. The preferable catalytic behaviors of Momodified mesoporous IM-5 catalysts may be attributed to the generation of secondary mesoporous systems within the zeolite crystals, which may influence the location and state of the active Mo species, simultaneously lead to easier access to the active sites for reactants and be favorable for the diffusion of products formed in the microporous channels during the methane aromatization reaction.

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Recent progress in methane dehydroaromatization: From laboratory curiosities to promising technology

Cited by 217 publications

References 202 publications

Methane Activation by Heterogeneous Catalysis

Methane Activation by Heterogeneous Catalysis

Methane dehydroaromatisation and methanol activation over zeolite catalysts: an overview

Improved performance of hierarchical porous Mo/H-IM-5 catalyst in methane non-oxidative aromatization

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